From 5d71306f0856612fe9e17f196d322c1c7fc3a311 Mon Sep 17 00:00:00 2001
From: Roy Wulms <roy@brandbeat.nl>
Date: Tue, 7 Jun 2022 20:34:19 +0200
Subject: [PATCH] Support alpha background

---
 src/ImageMerge.php       | 2 ++
 tests/ImageMergeTest.php | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/src/ImageMerge.php b/src/ImageMerge.php
index f83e35d..4f86ef6 100644
--- a/src/ImageMerge.php
+++ b/src/ImageMerge.php
@@ -111,6 +111,8 @@ public function merge($percentage)
         imagealphablending($img, true);
         $transparent = imagecolorallocatealpha($img, 0, 0, 0, 127);
         imagefill($img, 0, 0, $transparent);
+        imagealphablending( $img, false );
+        imagesavealpha( $img, true );
 
         imagecopy(
             $img,
diff --git a/tests/ImageMergeTest.php b/tests/ImageMergeTest.php
index c1af0f0..bac3cb8 100644
--- a/tests/ImageMergeTest.php
+++ b/tests/ImageMergeTest.php
@@ -78,6 +78,8 @@ public function test_it_merges_two_images_together_and_centers_it()
             536,
             354
         );
+        imagealphablending( $source, false );
+        imagesavealpha( $source, true );
         imagepng($source, $this->compareTestSaveLocation);
 
         $testImage = $this->testImage->merge(.2);